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Maryland Reverse Phone Lookup

Identify unknown Maryland phone numbers.
Use ThisNumber's reverse phone lookup tool to find out who's calling you.

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Reverse Phone Lookup

ThisNumber has over 28 million name and address records for about 23 million phone numbers, making it one of the best reverse phone lookup services for Maryland residents. Stop wondering who called you and start using this free lookup tool to identify the unknown callers, verify Maryland businesses, or research potential scam calls.

Identify Phone Number Location Using Maryland Area Codes

To identify the location of an Maryland phone number, you need to understand the North American Numbering Plan (NANP) structure that all Alabama numbers follow: +1 NPA NXX XXXX.

  • +1 - Country code indicating the United States
  • NPA - The area code reveals the geographic region where the number was originally assigned
  • NXX - Central office code that locates the specific neighborhood and identifies the service provider
  • XXXX - Subscriber number identifies the individual phone line within that local exchange

The area code (NPA) is your key to determining location. By matching the three-digit area code to Maryland's regional assignments, you can identify which part of the state the phone number originates from. Each area code corresponds to specific cities and counties throughout Maryland, making it possible to narrow down the caller's general location.

Here's a complete list of Maryland area codes with major cities:

Area Codes Cities
227/240/301Germantown, Silver Spring, Waldorf
240/227/301Germantown, Silver Spring, Waldorf
410/443/667Baltimore, Columbia, Glen Burnie
Maryland Area Code Map with Cities

For latest Maryland phone numbering regulations, contact Alden Manka at the Maryland PSC via [email protected] or 410-767-8007.

Maryland Phone Numbers

Maryland has approximately 9.2 million active phone numbers. Cell phones are the dominant type with 7.2 million users, while traditional landlines are much less common, with only 412,000 connections statewide. Internet phone services account for about 1.6 million numbers.

This breakdown indicates that searching a Maryland phone number will likely lead to a cell phone. The decline in landlines suggests that newer numbers may have less publicly available information compared to older landline numbers.

Maryland Voice Subscriptions (in thousands):

Service Type June 2023 Dec 2023 June 2024
Mobile telephony 7,055 7,176 7,255
Local exchange telephone service 478 443 412
VoIP subscriptions 1,659 1,630 1,560
Total 9,192 9,249 9,227

Source: FCC Voice Telephone Services Report

Top 5 US Cell Phone Companies

Most phone numbers are cell phones, and most cell phone numbers come from the top three United States wireless companies. Here are the top five US Cell Phone Companies in Q1 2025:

  • Verizon - 146 million customers
  • T-Mobile US - 131 million customers
  • AT&T Mobility - 118 million customers
  • Boost Mobile - 7 million customers
  • U.S. Cellular - 4.4 million customers

Robocalls and Unwanted Calls in Maryland

Maryland residents experienced a decrease in unwanted call complaints in 2024, with 41,831 complaints filed. This is a significant drop from the peak of 122,662 complaints in 2021, according to the latest National Do Not Call Registry Data Book.

Do Not Call Complaints from Maryland

Key Facts for Maryland Residents:

  • 22,144 complaints involved robocalls, representing the majority of unwanted call reports in Maryland.
  • 3,711 complaints were related to "reducing debt" schemes, followed by imposter scams (2,983) and "medical & prescriptions" scams (2,232), which demonstrates these scams are particularly prevalent in Maryland.
  • Over 5 million Marylanders have registered their numbers on the Do Not Call Registry, showing a strong commitment to call protection efforts.
  • A significant drop in complaints from 2021 to 2024 suggests protective measures are having a positive impact for households in Maryland.
  • 16,196 complaints involved live callers, indicating that human-operated scam operations continue to actively target the state.
  • Maryland ranks #13 nationally for complaints per 100,000 population, reflecting a relatively high level of complaints per capita compared to other states.
Useful tip: Protect your household by registering all your phone numbers at donotcall.gov or by calling 1-888-382-1222 from the number you want to protect.

Verify Phone Number Owner to avoid Scam Calls Maryland Fraud Statistics

According to the Federal Trade Commission's 2024 data, phone calls and text messages make up 35% of all fraud contact methods nationwide:

  • Phone calls: 19% of fraud reports (284,659 reports, $948M in losses)
  • Text messages: 16% of fraud reports (246,784 reports, $470M in losses)

More than 1 in 3 fraud attempts happen through phone communication. Phone call fraud costs victims a median of $1,500 per case. Text message fraud costs a median of $1,000 per victim.

Scam Calls: Maryland Fraud Statistics

In 2024, Maryland residents reported 111041 fraud cases resulting in total losses of $198.9M, with a median loss of $435 per victim. With phone-based fraud representing such a significant portion of these cases, phone owner verification has become a critical consumer protection tool.

When you receive calls from unknown numbers, take a moment to research the caller's identity. Reverse phone lookup services allow you to search a phone number to find information about who's calling—including whether the number has been reported for fraudulent activity.

Received fraudulent calls or fallen victim to phone fraud? Report it immediately. Each report helps authorities identify fraud patterns and protect other consumers from similar scams.

To report fraud or scam: reportfraud.ftc.gov

Additional Contact:
Maryland Attorney General
Anthony G. Brown
(410) 576-6300

Are Reverse Phone Lookups Legal in Maryland?

Yes, reverse phone lookups are legal in Maryland, but companies must follow strict rules under the Maryland Online Data Privacy Act of 2024. This law gives you significant control over how your phone number and personal information are used.

What Phone Information is Protected?

Maryland law protects your "personal data" linked to your identity, including:

  • Phone numbers connected to your name or address
  • Location data within 1,750 feet of your actual location
  • Contact details associated with your number
  • Sensitive information like health data or immigration status

Your Key Rights for Phone Privacy

  1. Delete your data - Force companies to remove your personal information
  2. Access your data - See what information companies have about you
  3. Opt out - Stop your data from being sold or used for targeted ads
  4. Correct errors - Fix wrong information in their databases
  5. Know who has it - Learn which third parties received your data

How to Remove Your Phone Data

Response time: Companies have 45 days to respond to your requests (may extend to 90 days for complex cases).

Free requests: Your first request each year must be handled for free.

How to request: Companies must provide a secure method on their website or through customer service. You cannot be forced to create a new account.

Can You Sue Phone Lookup Companies?

No private lawsuits allowed. Only the Maryland Attorney General can enforce violations. However, companies get a 60-day warning period to fix problems before facing penalties (through April 2027).

Special Location Protections

Companies cannot use location tracking within 1,750 feet of mental health or reproductive health facilities to collect health-related data about you.

For help with privacy violations, contact the Maryland Attorney General's Consumer Protection Division.